Heart Star (2020)

- Developer
- Adventure Islands
- Platforms
- Windows, macOS
- Genres
- Adventure, Casual, Indie
- Rating
- 4.8 of 5, 84 player ratings
- Typical playtime
- about 1.5 hours
- Where to get it
- Steam

The catalog in 3D
The same catalog has a room you can walk around in. The cat behind the counter is the AI Catbot, and they pick real games from it when you tell them what you feel like playing. Nothing is for sale, here or in there. Go in from here and this game is already out on the counter, with more like it waiting on the shelf next to it.
How it feels
A gentle, cooperative puzzle journey through parallel pixel worlds with a sweet and wholesome tone.
cuterelaxingcozypixelatedretrolightheartedcasualpuzzle-focused
What players say
A short dual-character puzzle platformer where each character sees different platforms. Players call it cute and clever, finishing in about an hour. Some note too many symmetrical levels, and many fondly remember it as a Flash game.
Screenshots






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BOXNIGMA (2021)- More like this game, on a shelf you can walk up to.It's the lit case on the top shelf.
More by Adventure Islands
Super Dangerous Dungeons (2018)
Total Party Kill (2019)
Tiny Dangerous Dungeons (2019)
Tiny Dangerous Dungeons Remake (2025)
Duke Dashington Remastered (2018)
Tightrope Theatre (2022)
Animal Arena (2024)
This page is from Underplayed Gems, a catalog of older and overlooked games. Not quite it? You can browse by platform and genre, or take this one into the 3D catalog and ask the Catbot for something closer.